FLORHAM PARK, N.J. (AP) New York Jets linebacker Lorenzo Mauldin tweaked his back and sat out practice Thursday, leaving him uncertain for the preseason game at Detroit on Saturday night.

Mauldin had been dealing with a back issue earlier during training camp, but returned to the field Wednesday. Coach Todd Bowles said the third-year linebacker was inside receiving treatment during practice Thursday.

Bowles added that he was unsure how long Mauldin would be sidelined, but said that he would likely not play against the Lions.